Friction draft-rigging for railroad-cars.



vPAirEN'rED tJULY 21, 1903.

2 SHEETS-SHEET 1 J. J. HENNESSEY.

FRIGTION DRAFT RIGGING FOR RAILROAD GARS.

APPLICATION FILED MAB.. Z0. 1903.

N0 MDEL.

WTNESSES. i175. mi'

No. 733,961. BATENTED JULY 21, 1903. l

Ji., EENNESSBYL.. l PRIGTIQM DIRYAET BfIlGING FOR RAILROAD GARS.APPLIOATIQN 1LED,MAn. zo. 119,os.

so MODEL.

Y Vm/55555.- )NVE/WOR.

UNITED STATES Patented July 21, 1903.

PATENT OFFICE.

JOHN J..HENNESSEY, OF MILWAUKEE, WISCONSIN.

FRICTION DRAFT-.RIGGING FOR RAILROAD-GARS SPECIFICATION forming part ofLetters Patent No. 733,961, dated July 21, 1903.

Application iilecl March 20, 1903. Serial No. 148.686. (No model.)

To @ZZ whom it 'nw/y concern:

Be it known that I, JOHN J. HENNEssEY, a citizen of the United States,residing in Milwaukee, in the cou nty'of Milwaukee and State v ofWisconsin, have invented a new and useful Improvement in FrictionDraft-Rigging for Railroad-Gars, of which the following i aspecification. l

My invention relates to friction draft-rigging for railway-cars.

The object of my invention is to simplify the construction and increasethe strength, durability, and efficiency in operation of the frictiondraft-rigging heretofore patented to mein Letters Patent Nos. 687,826,700,422, 702,426, 708,850, 716,415, 716,416, 717,676, 717,677, 717,678,and 717,679.

My invention consists, in connection with a draw-bar and draft-iron orextension inline therewith having a straight friction-face on one sideand a plurality of double-incline friction-faces on itsopposite side, ofa single transversely or vertically movable frictionblock having aplurality of double-incline friction-faces engaging the double-inclinefriction faces on the draft-iron, a transversely-arranged spring actingagainst said friction-block, and a pair of side plates' or stop-castingssecured to and between the" draft-timbers or center sills of the car andprovided with integral horizontally-extending wings or extensions, andafriction plate 'or surface engaging the straight friction-face of thedraft-iron, the friction-block having on its side vertically-extending`ribs or guides engaging corresponding ribs or guides on the side platesor stop-castings.

My invention also consists in the novel construction of parts anddevices and in the novel combinations of parts and devices herein shownor described.

In the accompanying drawings, Figure 1 is a central verticallongitudinal section, partly in elevation, taken on line 1 1 of Fig. 2.Fig.

2 is a plan view, partly in horizontal section. Fig. 3 is a verticalcross-section en line 3 3 of Fig. 1. Fig. 4is a detail perspective viewof the draft-iron, and Fig. 5 is a detail perspective view of thefriction-block.

In the drawings like letters of reference indicate like parts in all ofthe figures.

In the drawings, A represents the drafttimbers; A', the center sills;A2, the crosssills 5A A3, the buffer-block; A4, the bufferplate, andA5the'carry-iron, and B is the draw-bar of the coupler B, these partsbeing all of any suitable construction. D is the sliding draw-barextension or draft-iron, the same beingndirectly in line with thedraw-bar and connected thereto by a clip or yoke b, passing through aneye d in the draw-bar eX- tension or draft-iron. The draft-iron D has astraight vfriction-face d on one side, preferably its upper side, and Iaplurality, preferably two, double-incline friction-faces d2 cl3 d2 cl3on its opposite side, preferably its under side, and stop shoulders orprojections d4.

ings, fitting between the draft-timbers and securely attached thereto bybolts f. Each of the stop-castings F is provided at its central upper'portion with an integral horizontal `wing Aor extension F and withshoulders or sockets f to receive the ends of the stationary frictionplate G, so as to securely hold vand anchor the friction plat-e G inposition .above the longitudinally-movable draft-iron `D and in slidingfrictional engagement with the straight friction-face d of thedraft-iron and in the central line of draft. The frictionplate G ispreferably made in a separate piece from the stopcastings F or theirwings F. The stop-castings F are also provided with upright guides orribs f2, which engage corresponding ribs or guides h on the transverselyor vertically movable friction-block H. The horizontally-projectingwings F of the stop castings F haveupright abutting flanges f3, securedtogether vby rivets f4 and interengaging grooves'and tongues f 5 f,which thus rigidly secure the two stop-castings together, and therebyadd materially to the strength and rigidity of the draft-rigging as awhole.

The vertically or transversely movable friction-block II is providedwith a plurality, preferably two, double-incline friction-faces IOO h'h2 71.' h2, corresponding to and fitting against the double-inclinefriction-faces cl2 (Z3 and d2 d3 on the draft-iron D. The friction-blockH has a central rim or flange 71,3 on its opposite or lower side toreceive and form a seat for the transversely-acting spring K, which issupported at its lower end in a removable spring-seat or cup K', whichis removably secured to the downwardly-extending projections F2 of theside plates or stop-castings F by bolts K3 having keys Kl. Thespring-seat or cup K has flanges K5 at its front and rear ends, whichembrace the ends of the transversely-movable friction-block H, as willbe readily understood from Fig. l of thedrawin gs. As the draft-iron Dand friction-block H both have a plurality of double-inclinefrictionfaces and as the transversely-acting spring K bears centrallyagainst the friction-block or midway between its ends, although but asingle spring is employed, all tendency of the friction-block to tilt orcant, and consequently bind in its guides on the side plates orstopcastings, is effectually prevented or overcome, while at the sametime the friction-surfaces are materially increased in area over whatthey would be if but a single pair of incline friction-faces (Z2 cl371,' 72,2 were employed, and the durability of the draft-rigging is thusmaterially increased and its construction simplied.

The side plates or stop-castings F F have shoulders or stops fl for thestop-'shoulders di on the draft-iron to abut against.

The side plates orstop-castings F have each, preferably, a series ofthree upright guides or ribs f2 for the friction-block, which engage acorresponding series of upright guides or ribs h on the friction-block.This materially increases the bearing area and face of thetransversely-movable friction-block on theside plates or stop-castingsand materially adds to the strength and durability of the draft-riggingas a whole, there heilig four guide shoulders or faces f2 on the sideplates or stop-castings fitting against four corresponding guideshoulders or faces t on the friction-block H.

I claiml. In a friction draft-rigging. for railwaycars, the combinationwith the draw-bar, of a draft-iron in line therewith having a straightfriction-faceon one side and a plurality of double-inclinefriction-faces on its opposite side, a transversely-movablefriction-block having a plurality of double-incline frictionfacesengaging the double-incline frictionfaces on the draft-iron, and atransverselyarranged spring bearing against said frictionblock,substantially as specified.

2. In a friction draft-rigging for railwaycars, the combination with thedraw-bar, of a draft-iron in line therewith having a straightfriction-face on one side and a plurality of double-inclinefriction-faces on its opposite side, a transversely-movablefriction-block having a plurality of double-incline frictionfacesengaging the double-incline frictionfaces on the draft-iron, atransversely-arranged spring bearing against said frictionblock, a pairof side plates or stop-castings and a stationary friction-plate engagingthe straight friction-face of the draft-iron, substantially asspecified.

3. In a friction draft-rigging for railwaycars, the combination with thedraw-bar, of a draft-iron in line therewith having a straightfriction-face on one side and a plurality of double-inclinefriction-faces on its opposite side, a transversely-movablefriction-block' having a plurality of double-incline frictionfacesengaging the double-incline frictionfaces on the draft-iron, atransversely-arranged spring bearing against said frictionblock, and apair of side plates or stop-castings furnished with a series of ribs 0rguides for said friction-block said friction-block having also a seriesof ribs or guides on each of its sides engaging the corresponding ribsor guides on the side plates or stop-castings, substantially asspecified.

JOHN J. HENNEssEY. Witnesses:

EDMUND ADGOCK, I-I. 'M MUNDAY.

